Heater or stove



Aug. 19, 1952 i s. D. PERLMAN 2,507,334

\ HEATER 0R STOVE Filed Aug. 10, 1950 z sHEE'rs-smz'r 1 Aug. 19, 1952 s. D. PERLMAVN HEATER OR STOVE 2 S ETS-51mm 2 Filed Aug. 1c ,v 1950 IN VENT OR 5AM LDO/VAL DPE LMA/Q MAHORNEYS Patented Aug. 19, 1952 -UNITED STATES PATENT patent application presents certain new and useful improvements in heaters or stoves over that which has been shown in my'co-pend- *ing application Serial No. 6,2 filed October 23; 194'8, now Patent No. 2,530,621, of November 21-, 1950, and also my co-pe'ndingapplication Serial No. 134,433, respectively, 'filed August 10,

One-feature-cf the present invention is to provide for collapsing the body of the heater into compact form when not in use so as to place the device in good condition for transportation and storage and to enable convenient adjustment of the device from its collapsed condition to its ex- "tended form in condition for use. Another object of the invention is to provide for placing solid fuel in position on the hearth of the heater without dismantling the device or interfering with the burning of the fuel remain-'- "thedesirable features of my former devices and adds certain improved and desirable features thereto;

In the drawings- Figure 1 is a vertical longitudinal sectional View of the heater of the present invention in its operable condition.

Figure 2 is a vertical longitudinal sectional 'view'of the heater of the present invention in its collapsed condition.

Figure 3 is a plan section on the line 3--3 of a Figure l. V Figure 4 is a top plan viewof the cover.

Figure '5 is a detailed cross sectional view taken vertically through one side of the bottom member or section of the body of the heater.

According to the present invention, the body of the heater is made in sections such as indicated at I and '2, which sections are preferably cylindrical in shape and are telescoped as shown so that the uppermost section I may be extended into the position shown in Figure 1 or collapsed upon the section 2 as shown in Figure 2. It

'willpof course, be, understood that while only 'two telescopic sections have been shown, three "or more may be employed.

aswell as a detachable connection'with the-body.

As in my prior inventions, the present device isintended for the heating of cans of food, one of which has been indicated at 6 in Figure 1. For the support of the can to 'be heated there is 'provided asupport'in theform of a=shell-"I preferably provided with a large number of per- -f-orations-8 as shown and'this shell is preferably cylindrical in form and fits within the'surroundfing-wa1ls9-of the hearth 4 and may be connectthrough of products of combustion and also for, the passage inwardly of air from the ports Ia5 to support combustion.

Preferably the shell or support I is shorter than the body section 2 and while its top may be covered or provided with a coveringplate as in my prior applicatioris; it is preferably open and uncovered as the can, when seated upon the top edgeof the shell or support, provides a desirable covering "for-the shell. Normally,. the upper body section I is collapsed upon the lower section 2 as shown in Figure "2 and the body isrhoused or contained Within a casing III as .in.'Figure 2 and this housing or casing is provided with a cover I I whereby the heater is effectually housed and protected when not inuse. Any suitable connection may be provided betweenthe cover and the-casing or housing "I0, that shown being ascrew threaded connection.-

To set up the heater in its operative condition,'as in Figure l, fromits collapsed position as in Figure 2, the cover I I is first removed;jthen the collapsed sections I; 2 are removed as a unit upwardly through the open top of the casing Ill;

then the section I is pulled upwardly upon vsection 2 to the desired elevation thereon; then the casing f0 is placed in position with its flange I6 un'til-it 'rests upon the top of the baffle I. .Then

the cover Il may be put on the casing if desired. With 'the heater inits operative condition, "as

3 shown in Figure 1 of the drawings. to collapse it into the condition shown in Figure 2, the cover II is first removed; then the casing I is removed upwardly; then the body section I is pushed downupon the section 2 to its collapsed position; then the collapsed body sections are placed downwardly as a unit through the top of the casing l0 until said unit rests on the inturned flange I 6; then the cover is placed on top of the casing I0,,when the device will be in its collapsed condition for transportation 'or storage.

Section I of the body frictionally engages section 2 whereby it is supported and may be disposed at difierent elevations thereon. In the operative condition of the heaterthe casinglfl' constitutes a part or section of the body. By vertically adjusting the section I on'the section 2, the flange I6 may be made to occupy any selected elevation within the limits of the height or depth of the sections I and 2, whereby the .air inlet I! may thusbe vertically adjusted to :meetbombustion conditions such as may be brought about by the use ofdifferentkinds of fueLatmospheric and temperature changes, etc. JIZhebottom body section or member 2 may be foldedorturned, over; outwardly at its top as shown,v so as to forman annular shoulder, and

theibottom edge of the upper section I may be .turned inwardly or folded upon itself so as toform a shoulder to engage beneath the shoulder of the part 2 and prevent the separation of the body-sections. 7

' Provision is made for introducing solid fuel .intothe heater without removing the can or any of the parts of the heater by providing the lower times the slide I3 effectually closes the opening l2.v :The support or shell 1 is provided with one or more openings in alignment with the opening '12 in the body member 2 so thatsolid fuel introduced through'the registered openings I2 and I4 may be conveniently passed therethrough and deposited upon the hearth 4. While any desired number of such openings I2 may be provided in the body member 2, two such openings have been shown in Figures 1 and 2 of the drawings. "1 7 :bottom'memberv 3 slightly above the ground or whatever the heater 'is placed upon. Inlet openings I for theintroduction of air are pro-' vided in that part of the bottom which surrounds the walls 9 of the hearth and between saidwalls and the bead t, Also, the bottom of the casing or. housing I0 is provided with an inturned flange I5 in which are openings I! intended to supply secondary air. to the heater.

It will here be; explained that the vertical dimension of the shell I is such that unignited products of combustion rising from the hearth will strike the bottom of the can which will then act as a baflle causing the unignited products of combustion. to spread radially outward' and through the ports or openings 8 in the baffle I and into the annular chamber surrounding the 4 baifle 1, where they will rise between the can and ,the body and subsequently break into an annular ,flame around the can when such unignited products of combustion reach the air admitted through the inlet ports H. The height of the ports above the top of the baflle may be regulated in that the body section I may be adjusted vertically on the body section 2 and so the ports Il may be disposed at various positions between that showninthe drawingand th e'ftop of the section 2 to meet combustion changes as may be brought about by the use of diiferent fuels, atmospheric and temperature changes, etc.

' throughout the entire length thereof.

The cover II of the casing or housing It! preferably rests loosely upon the top of the can and is merely engaged loosely with the top of the housing so 'that'steam and the like escaping from the open top of the can will have an opportunity to escape therefrom and products of combustion will likewise escape thereby providing an updraft such as will draw in air for ignition purposes through the inlet ports I1. It will. of course, be understood that the top of the can is removed before it is placed in the heater. The top of the can need not be entirely removed but may be partially removed therefrom and received upwardly through the slot I8 provided in the cover I I, all as shown in my prior application Serial No. 134,433.

In Figure 5 of the drawings there has been shown a sheet of insulating material I9 such as asbestos between the body 2 and the slide I3, and it will, of course, be, understood that such an arrangement is contemplated in [Figures 1 and 2 of the drawings. Furthermore, it will be noted that the material of the body 2 is bent over externally on the outside of the member both at the top and the bottom thereof so that the band or ring I3 may be mounted between the annular shoulders provided by such bending over of the material.

Having thus described my invention, what I claimis: y

1. A heater comprising a body havingan open top, a hearth supported within the body, a marginal baflle within and spaced from the upright wal1=of the body and rising from the hearth and terminating short of the top of the bQdYQthe top of the bafiie constituting a supportfora receptacle to be heated, the upright wall oilthe baffle being provided with openings constituting ports disposed for the inward admissionzof air to the hearth and also for outward escape of products of combustion, a bottom member for the body, said bottom member having anexternal peripheral bead open at its top and-also provided with air induction opem'ngs, said body having its lower portion received within thebead and having a threaded connection with a wall of the bead. 3}

2. A heater comprising a cylindrical body made up of telescopic sections, a hearth within the 'bodyga cylindrical shell forming a baflle within and spaced from the upright walls of thebody and rising from the'hearth, the body having an air inlet disposed to suppply air tothe hearth, one of the upper body sections having anair inlet located above the ;top of the 'bafile,-said upper body section being adjustable vertically whereby the elevation of the air'inlet thereof may beselectively adjusted.

- 3. A heater-comprising a body having-an open top, a-hearth supported within theibody', a marginal baffle within and spaced from. fithefupright walls of the body and rising from the hearth and terminating short of the top of the body, the top of the bailie constituting a support for a receptacle to be heated, the upright walls of the baiiie being provided with ports disposed for the inward admission of air to the outer periphery of the hearth and also for outward escape for products of combustion, said baifie also being provided with a fuel inlet opening, the body having air inlet ports disposed to admit air to the ports of the baflle, and a bottom member provided upon the body and located below the hearth, said body being cylindrical in shape and including upper and lower telescoped sections, the lower section having a fuel inlet opening aligned with the fuel inlet opening of the bafile, said body sections being bent to form an external annular shoulder at the top of the lower section and an internal annular shoulder at the bottom of the upper section, the top of the lower section being within the bottom portion of the upper section, the top shoulder of the lower section overhanging the bottom shoulder of the upper section to prevent separation of the sections, and an annular circumferentially movable band surrounding the lower body section and lying between the overlapped portions of the two sections, said band being provided with a fuel inlet opening for registration with the fuel inlet of the lower body section.

SAMUEL DONALD PERLMAN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 936,482 Seeley Oct. 12, 1909 1,238,080 Ball Aug. 28, 1917 1,304,088 Patterson May 20, 1919 1,391,415 Schonitzer Sept. 20, 1921 1,437,073 Popper Nov. 28, 1922 1,487,474 Rhodes Mar. 18, 1924 1,508,334 Ingalls Sept. 9, 1924 1,739,138 Giragosian Dec. 10, 1929 2,381,906 Howard Aug. 14, 1945 2,517,254 Steele Aug. 1, 1950 2,530,721 Perlman Nov. 21, 1950 FOREIGN PATENTS Number Country Date 2,475 Great Britain of 1915 117,757 Great Britain Aug. 1, 1918 580,829 France Sept. 11, 1924 111,961 Switzerland Sept. 16, 1925 599,185 Germany June 27, 1934 

